| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.iotdb.db.schemaengine.schemaregion.mtree.impl.mem.mnode.info; |
| |
| import org.apache.iotdb.commons.schema.node.info.IMeasurementInfo; |
| import org.apache.iotdb.commons.schema.node.role.IMeasurementMNode; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| import org.apache.iotdb.tsfile.write.schema.IMeasurementSchema; |
| |
| public class MeasurementInfo implements IMeasurementInfo { |
| |
| /** alias name of this measurement */ |
| protected String alias; |
| /** tag/attribute's start offset in tag file */ |
| private long offset = -1; |
| /** measurement's Schema for one timeseries represented by current leaf node */ |
| private IMeasurementSchema schema; |
| /** whether this measurement is pre deleted and considered in black list */ |
| private boolean preDeleted = false; |
| |
| // alias length, hashCode and occupation in aliasMap, 4 + 4 + 44 = 52B |
| private static final int ALIAS_BASE_SIZE = 52; |
| |
| public MeasurementInfo(IMeasurementSchema schema, String alias) { |
| this.schema = schema; |
| this.alias = alias; |
| } |
| |
| @Override |
| public void moveDataToNewMNode(IMeasurementMNode<?> newMNode) { |
| newMNode.setSchema(schema); |
| newMNode.setAlias(alias); |
| newMNode.setOffset(offset); |
| newMNode.setPreDeleted(preDeleted); |
| } |
| |
| @Override |
| public IMeasurementSchema getSchema() { |
| return schema; |
| } |
| |
| @Override |
| public void setSchema(IMeasurementSchema schema) { |
| this.schema = schema; |
| } |
| |
| @Override |
| public TSDataType getDataType() { |
| return schema.getType(); |
| } |
| |
| @Override |
| public String getAlias() { |
| return alias; |
| } |
| |
| @Override |
| public void setAlias(String alias) { |
| this.alias = alias; |
| } |
| |
| @Override |
| public long getOffset() { |
| return offset; |
| } |
| |
| @Override |
| public void setOffset(long offset) { |
| this.offset = offset; |
| } |
| |
| @Override |
| public boolean isPreDeleted() { |
| return preDeleted; |
| } |
| |
| @Override |
| public void setPreDeleted(boolean preDeleted) { |
| this.preDeleted = preDeleted; |
| } |
| |
| /** |
| * The memory occupied by an MeasurementInfo based occupation |
| * |
| * <ol> |
| * <li>object header, 8B |
| * <li>alias reference, 8B |
| * <li>long tagOffset, 8B |
| * <li>boolean preDeleted, 1B |
| * <li>estimated schema size, 32B |
| * </ol> |
| */ |
| @Override |
| public int estimateSize() { |
| return 8 + 8 + 8 + 1 + 32 + (alias == null ? 0 : ALIAS_BASE_SIZE + alias.length()); |
| } |
| } |